A 1/8 inch pilot hole followed by a 3/4 inch dia hole to be drilled in end of a 3.875 inch dia shaft.Calculate the RPM of each drill. m6 x8 T, U* B2 D: e
Note: CS=80$ g. J7 u) `$ h* l8 g
3 U' u/ A, m. _) W; o+ E$ lRPM 1/8=+ u% x5 ?1 X/ Y
RPM 3/4= ( C+ |* H# ]0 f0 Z* K % h) V. q3 `2 c% V& j, jThanks a lot.
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发表于 2007-11-24 20:29
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